CN109401087A - A kind of rubber absorbers and preparation method thereof - Google Patents
A kind of rubber absorbers and preparation method thereof Download PDFInfo
- Publication number
- CN109401087A CN109401087A CN201811180300.7A CN201811180300A CN109401087A CN 109401087 A CN109401087 A CN 109401087A CN 201811180300 A CN201811180300 A CN 201811180300A CN 109401087 A CN109401087 A CN 109401087A
- Authority
- CN
- China
- Prior art keywords
- parts
- rubber
- mixing
- filler
- magnesia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of rubber absorbers, comprising: 60-75 parts of butyl rubber, 30-55 parts of natural rubber, 10-19 parts of ingredient rubber, 25-45 parts of filler, 6-8 parts of mineral fibres, 1-2 parts of vulcanizing agent, 0.2-0.6 parts of stearic acid, 3-7 parts of paraffin, 1-5 parts of aluminum-zirconium coupling agent, 2-4 parts of polyethylene glycol stearate, 0.5-1.5 parts of crosslinking agent, 1-2 parts of antioxidant, 1-3 parts of promotor, 3-5 parts of magnesia, 3-7 parts of magnesia.
Description
Technical field
The present invention relates to rubber absorbers and its preparation technical field more particularly to a kind of rubber absorbers and its preparation sides
Method.
Background technique
Rubber absorbers have been widely used as a kind of important damper element in all kinds of machinery, automobile, railway machine
Vehicle, marine equipment, aircraft and other aircrafts.Need to use damping and the place of shock insulation requires to make it can be said that all
Use rubber absorbers.Why rubber absorbers are so widely used, and are because the as follows of rubber is effectively utilized in it
Many characteristics: rubber has high resiliency and viscoelasticity.
Rubber shock-absorbing mat product is used to eliminating or reducing the transmitting of mechanical shock, it is well known that Rubber shock-absorbing pad etc. compared with
Under big pressure, if decrement is larger, the elasticity of rubber can not be showed, and damping effect will greatly reduce, or even meeting
Lead to not achieve the effect that vibration isolation, damping, therefore, currently, how the research direction to Rubber shock-absorbing pad mainly provides it
Intensity, and can have good toughness simultaneously, it to obtain excellent support ability and damping effect, but is not to manage very much eventually
Think.And in addition to fatigue behaviour to be considered and static rigidity, since high-speed rail rubber mat plate due to being exposed in atmosphere for a long time,
Require good resistance to natural aging and cold-resistant, heat resistance, it is also necessary to which the weight for considering rubber mat plate itself is easily installed
With carrying.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of rubber absorbers and preparation method thereof, top load, the height of raising
The demand of intensity, superhigh temperature (90 DEG C of maximum operation (service) temperature) condition, must have good heat oxygen aging resistance for natural rubber
Except performance and dynamic fatigue property, it is necessary to further increase the stability of adhesive strength between natural rubber and framework material.
Specific technical solution is as follows:
In order to achieve the above objectives, the embodiment of the invention provides a kind of rubber absorbers, comprising: 60-75 parts of butyl rubber,
30-55 parts of natural rubber, 10-19 parts of ingredient rubber, 25-45 parts of filler, 6-8 parts of mineral fibres, 1-2 parts of vulcanizing agent, stearic acid
0.2-0.6 parts, it is 3-7 parts of paraffin, 1-5 parts of aluminum-zirconium coupling agent, 2-4 parts of polyethylene glycol stearate, 0.5-1.5 parts of crosslinking agent, anti-
1-2 parts of oxidant, 1-3 parts of promotor, 3-5 parts of magnesia, 3-7 parts of magnesia.
In a kind of implementation of the invention, the aluminum-zirconium coupling agent is aluminium methacrylate-zirconium coupling agent, adipic acid
One of aluminum-zirconium coupling agent and aluminum stearate-zirconium coupling agent.
In a kind of implementation of the invention, the antioxidant is antioxidant 1010, antioxidant 1076 and antioxygen
One of agent CA.
In a kind of implementation of the invention, the filler be one of diatomite, talcum powder and silica-alumina carbon black or
A variety of mixtures and the filler further include the compound resin of coumarone indene resin, epoxy resin and polystyrene composition.
It further include one of cis-butadiene cement, neoprene and nitrile rubber or its group in a kind of implementation of the invention
Polymer mixtures.
In addition, including the following steps: the invention discloses a kind of preparation method of rubber absorbers
(2) mixer mixing: being set as 95-98 DEG C for mixing room temperature, and butyl rubber, natural rubber, ingredient is first added
Rubber, filler, magnesia, magnesia, antioxidant, stearic acid 7~10min of mixing, are subsequently added into filler, mixing 2-3min,
Polyethylene glycol stearate, crosslinking agent is added, 12~15min of mixing adds paraffin, and it is even that aluminum-zirconium is added in 9~10min of mixing
Join agent, promotor, promotor mixing 3-5min, discharging obtains rubber compound mixing material;
(3) mill mixing: rubber compound mixing material being placed and is cooled down, and temperature is down to 45 DEG C hereinafter, investment open mill, is added
Vulcanizing agent, after vulcanizing agent is fully mixed, Bao Tong, bottom sheet obtains rubber compound mill material;
(4) vulcanize: by rubber compound mill material be packed into mold, press cure, 25~30Mpa of sulfide stress, curing temperature:
125~130 DEG C, vulcanization time: 20-25min obtains rubber compound;
(5) damper finished product: is made in the mixing adhesive curing.
In a kind of implementation of the invention, before vulcanisation step, after rubber compound mill material is placed at least 12h, then
It is turned refining 4-5 times using open mill.
It is cooling using condensed water in mixer mixing process in a kind of implementation of the invention, guarantee smelting temperature
No more than 100 DEG C.
In a kind of implementation of the invention, the thin reduction of fractions to a common denominator carries out at least twice in thin logical step, for the first time thin logical 5-10
Secondary, second thin 10-15 times logical.
In a kind of implementation of the invention, solidifying the step of damper is made is respectively at 140 DEG C, 160 DEG C and 180 DEG C
Lower heat preservation 1h, 1.5h and 2h.
Using a kind of rubber absorbers provided in an embodiment of the present invention and preparation method thereof, pass through butyl rubber, natural rubber
Polyethylene glycol stearate, crosslinking is added in glue, ingredient rubber, filler, magnesia, magnesia, antioxidant, stearic acid mixing
Agent mixing adds paraffin, and aluminum-zirconium coupling agent, promotor, promotor mixing is added in mixing, and vulcanizing agent is added, and rubber compound is opened
Refining material, then damper is made by adhesive curing is kneaded.Top load, high intensity, superhigh temperature (90 DEG C of maximum operation (service) temperature) item of raising
The demand of part must have except good heatproof air aging performance and dynamic fatigue property natural rubber, it is necessary into one
Step improves the stability of adhesive strength between natural rubber and framework material.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of rubber absorbers, comprising: 60 parts of butyl rubber, 30 parts of natural rubber, 10 parts of ingredient rubber, 25 parts of filler,
6 parts of mineral fibres, 1 part of vulcanizing agent, 0.2 part of stearic acid, 3 parts of paraffin, 1 part of aluminum-zirconium coupling agent, 2 parts of polyethylene glycol stearate,
0.5 part of crosslinking agent, 1 part of antioxidant, 1 part of promotor, 3 parts of magnesia, 3 parts of magnesia.
In a kind of implementation of the invention, the aluminum-zirconium coupling agent is aluminium methacrylate-zirconium coupling agent, adipic acid
One of aluminum-zirconium coupling agent and aluminum stearate-zirconium coupling agent.
In a kind of implementation of the invention, the antioxidant is antioxidant 1010, antioxidant 1076 and antioxygen
One of agent CA.
In a kind of implementation of the invention, the filler be one of diatomite, talcum powder and silica-alumina carbon black or
A variety of mixtures and the filler further include the compound resin of coumarone indene resin, epoxy resin and polystyrene composition.
It further include one of cis-butadiene cement, neoprene and nitrile rubber or its group in a kind of implementation of the invention
Polymer mixtures.
Embodiment 2:
A kind of rubber absorbers, comprising: 65 parts of butyl rubber, 35 parts of natural rubber, 17 parts of ingredient rubber, 30 parts of filler,
7 parts of mineral fibres, 1.5 parts of vulcanizing agent, 0.5 part of stearic acid, 6 parts of paraffin, 4 parts of aluminum-zirconium coupling agent, polyethylene glycol stearate 3
Part, 1 part of crosslinking agent, 1 part of antioxidant, 1 part of promotor, 4 parts of magnesia, 6 parts of magnesia.
Embodiment 3:
A kind of rubber absorbers, comprising: 75 parts of butyl rubber, 55 parts of natural rubber, 19 parts of ingredient rubber, 45 parts of filler,
8 parts of mineral fibres, 2 parts of vulcanizing agent, 0.6 part of stearic acid, 7 parts of paraffin, 5 parts of aluminum-zirconium coupling agent, 4 parts of polyethylene glycol stearate,
1.5 parts of crosslinking agent, 2 parts of antioxidant, 3 parts of promotor, 5 parts of magnesia, 7 parts of magnesia.
Embodiment 4:
A kind of preparation method of rubber absorbers, includes the following steps:
(2) mixer mixing: being set as 95 DEG C for mixing room temperature, and butyl rubber, natural rubber, ingredient rubber is first added
Glue, filler, magnesia, magnesia, antioxidant, stearic acid mixing 7min, are subsequently added into filler, and poly- second is added in mixing 2min
Glycol stearate, crosslinking agent, mixing 12min add paraffin, and aluminum-zirconium coupling agent, promotor, promotion is added in mixing 9min
Agent mixing 3min, discharging obtain rubber compound mixing material;
(3) mill mixing: rubber compound mixing material being placed and is cooled down, and temperature is down to 45 DEG C hereinafter, investment open mill, is added
Vulcanizing agent, after vulcanizing agent is fully mixed, Bao Tong, bottom sheet obtains rubber compound mill material;
(4) vulcanize: by rubber compound mill material be packed into mold, press cure, sulfide stress 25Mpa, curing temperature: 125 DEG C,
Vulcanization time: 20min obtains rubber compound;
(5) damper finished product: is made in the mixing adhesive curing.
In a kind of implementation of the invention, before vulcanisation step, after rubber compound mill material is placed at least 12h, then
It is turned refining 4 times using open mill.
It is cooling using condensed water in mixer mixing process in a kind of implementation of the invention, guarantee smelting temperature
No more than 100 DEG C.
In a kind of implementation of the invention, the thin reduction of fractions to a common denominator carries out at least twice in thin logical step, for the first time thin logical 5-10
It is secondary, it is second thin 10 times logical.
In a kind of implementation of the invention, solidifying the step of damper is made is respectively at 140 DEG C, 160 DEG C and 180 DEG C
Lower heat preservation 1h, 1.5h and 2h.
Embodiment 5:
A kind of preparation method of rubber absorbers, includes the following steps:
(2) mixer mixing: being set as 97 DEG C for mixing room temperature, and butyl rubber, natural rubber, ingredient rubber is first added
Glue, filler, magnesia, magnesia, antioxidant, stearic acid mixing 8min, are subsequently added into filler, and mixing 2.5min is added poly-
Ethylene glycol stearate, crosslinking agent, mixing 14min add paraffin, mixing 9.5min, be added aluminum-zirconium coupling agent, promotor,
Promotor mixing 4min, discharging obtain rubber compound mixing material;
(3) mill mixing: rubber compound mixing material being placed and is cooled down, and temperature is down to 45 DEG C hereinafter, investment open mill, is added
Vulcanizing agent, after vulcanizing agent is fully mixed, Bao Tong, bottom sheet obtains rubber compound mill material;
(4) vulcanize: rubber compound mill material is packed into mold, press cure, sulfide stress 28Mpa, curing temperature: 1229
DEG C, vulcanization time: 24min obtains rubber compound;
(5) damper finished product: is made in the mixing adhesive curing.
Embodiment 6:
A kind of preparation method of rubber absorbers, includes the following steps:
(2) mixer mixing: being set as 98 DEG C for mixing room temperature, and butyl rubber, natural rubber, ingredient rubber is first added
Glue, filler, magnesia, magnesia, antioxidant, stearic acid mixing 10min, are subsequently added into filler, and poly- second is added in mixing 3min
Glycol stearate, crosslinking agent, mixing 15min add paraffin, and aluminum-zirconium coupling agent, promotor, rush is added in mixing 10min
Into agent mixing 5min, discharging obtains rubber compound mixing material;
(3) mill mixing: rubber compound mixing material being placed and is cooled down, and temperature is down to 45 DEG C hereinafter, investment open mill, is added
Vulcanizing agent, after vulcanizing agent is fully mixed, Bao Tong, bottom sheet obtains rubber compound mill material;
(4) vulcanize: by rubber compound mill material be packed into mold, press cure, sulfide stress 30Mpa, curing temperature: 130 DEG C,
Vulcanization time: 25min obtains rubber compound;
(5) damper finished product: is made in the mixing adhesive curing.
Using a kind of rubber absorbers provided in an embodiment of the present invention and preparation method thereof, pass through butyl rubber, natural rubber
Polyethylene glycol stearate, crosslinking is added in glue, ingredient rubber, filler, magnesia, magnesia, antioxidant, stearic acid mixing
Agent mixing adds paraffin, and aluminum-zirconium coupling agent, promotor, promotor mixing is added in mixing, and vulcanizing agent is added, and rubber compound is opened
Refining material, then damper is made by adhesive curing is kneaded.Top load, high intensity, superhigh temperature (90 DEG C of maximum operation (service) temperature) item of raising
The demand of part must have except good heatproof air aging performance and dynamic fatigue property natural rubber, it is necessary into one
Step improves the stability of adhesive strength between natural rubber and framework material.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of rubber absorbers characterized by comprising 60-75 parts of butyl rubber, 30-55 parts of natural rubber, ingredient rubber
10-19 parts, 25-45 parts of filler, 6-8 parts of mineral fibres, 1-2 parts of vulcanizing agent, 0.2-0.6 parts of stearic acid, 3-7 parts of paraffin, aluminum-zirconium
1-5 parts of coupling agent, 2-4 parts of polyethylene glycol stearate, 0.5-1.5 parts of crosslinking agent, 1-2 parts of antioxidant, 1-3 parts of promotor,
3-5 parts of magnesia, 3-7 parts of magnesia.
2. rubber absorbers according to claim 1, which is characterized in that the aluminum-zirconium coupling agent is aluminium methacrylate-
One of zirconium coupling agent, adipic acid aluminum-zirconium coupling agent and aluminum stearate-zirconium coupling agent.
3. rubber absorbers according to claim 1, which is characterized in that the antioxidant is antioxidant 1010, resists
One of oxidant 1076 and antioxidant CA.
4. a kind of rubber absorbers according to claim 1, which is characterized in that the filler is diatomite, talcum powder and silicon
One or more of aluminium carbon black mixture and the filler further include coumarone indene resin, epoxy resin and polystyrene
The compound resin of composition.
5. a kind of rubber absorbers according to claim 1, which is characterized in that further include cis-butadiene cement, neoprene and butyronitrile
One of glue or a combination thereof object mixture.
6. a kind of preparation method of rubber absorbers, which comprises the steps of:
(2) mixer mixing: being set as 95-98 DEG C for mixing room temperature, first be added butyl rubber, natural rubber, ingredient rubber,
Filler, magnesia, magnesia, antioxidant, stearic acid 7~10min of mixing, are subsequently added into filler, and mixing 2-3min is added poly-
Ethylene glycol stearate, crosslinking agent, 12~15min of mixing add paraffin, 9~10min of mixing, be added aluminum-zirconium coupling agent,
Promotor, promotor mixing 3-5min, discharging obtain rubber compound mixing material;
(3) mill mixing: rubber compound mixing material being placed and is cooled down, and temperature is down to 45 DEG C hereinafter, investment open mill, is added vulcanization
Agent, after vulcanizing agent is fully mixed, Bao Tong, bottom sheet obtains rubber compound mill material;
(4) vulcanize: by rubber compound mill material be packed into mold, press cure, 25~30Mpa of sulfide stress, curing temperature: 125~
130 DEG C, vulcanization time: 20-25min obtains rubber compound;
(5) damper finished product: is made in the mixing adhesive curing.
7. a kind of preparation method of rubber absorbers according to claim 6, which is characterized in that, will before vulcanisation step
After rubber compound mill material places at least 12h, reuses open mill and turn refining 4-5 times.
8. a kind of preparation method of rubber absorbers according to claim 6, which is characterized in that in mixer mixing process
In, it is cooling using condensed water, guarantee that smelting temperature is no more than 100 DEG C.
9. a kind of preparation method of rubber absorbers according to claim 7, which is characterized in that Bao Tongfen in thin logical step
It carries out at least twice, thin 5-10 times logical for the first time, second thin 10-15 times logical.
10. a kind of preparation method of rubber absorbers according to claim 7, which is characterized in that solidify and damper is made
Step is to keep the temperature 1h, 1.5h and 2h at 140 DEG C, 160 DEG C and 180 DEG C respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811180300.7A CN109401087A (en) | 2018-10-10 | 2018-10-10 | A kind of rubber absorbers and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811180300.7A CN109401087A (en) | 2018-10-10 | 2018-10-10 | A kind of rubber absorbers and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109401087A true CN109401087A (en) | 2019-03-01 |
Family
ID=65467477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811180300.7A Pending CN109401087A (en) | 2018-10-10 | 2018-10-10 | A kind of rubber absorbers and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109401087A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110724352A (en) * | 2019-10-16 | 2020-01-24 | 威海闽商投资股份有限公司 | Plastic mold material and processing method thereof |
CN111054925A (en) * | 2019-12-30 | 2020-04-24 | 宁波顺达粉末冶金工业有限公司 | Rubber-coated piston and manufacturing method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106009331A (en) * | 2016-07-27 | 2016-10-12 | 广西南宁胜祺安科技开发有限公司 | Wear-resistant rubber shock absorption material and preparation method thereof |
CN106608988A (en) * | 2016-12-31 | 2017-05-03 | 安徽立信橡胶科技有限公司 | Rubber shock pad for high-speed railways |
CN107746478A (en) * | 2017-09-28 | 2018-03-02 | 南通通江橡胶制品有限公司 | A kind of Rubber shock-absorbing pad and its preparation technology |
-
2018
- 2018-10-10 CN CN201811180300.7A patent/CN109401087A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106009331A (en) * | 2016-07-27 | 2016-10-12 | 广西南宁胜祺安科技开发有限公司 | Wear-resistant rubber shock absorption material and preparation method thereof |
CN106608988A (en) * | 2016-12-31 | 2017-05-03 | 安徽立信橡胶科技有限公司 | Rubber shock pad for high-speed railways |
CN107746478A (en) * | 2017-09-28 | 2018-03-02 | 南通通江橡胶制品有限公司 | A kind of Rubber shock-absorbing pad and its preparation technology |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110724352A (en) * | 2019-10-16 | 2020-01-24 | 威海闽商投资股份有限公司 | Plastic mold material and processing method thereof |
CN111054925A (en) * | 2019-12-30 | 2020-04-24 | 宁波顺达粉末冶金工业有限公司 | Rubber-coated piston and manufacturing method thereof |
CN111054925B (en) * | 2019-12-30 | 2021-09-21 | 宁波顺达粉末冶金工业有限公司 | Rubber-coated piston and manufacturing method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107383322B (en) | Low dynamic and static stiffness ratio polyurethane microporous elastomer composite material for urban rails and preparation method thereof | |
CN100404601C (en) | Rubber material for metal and rubber composite shock-absorbent product | |
CN101817957B (en) | Low-lag microcellular rubber material for oscillation reduction of high-speed railway fastener and preparation method thereof | |
CN109401087A (en) | A kind of rubber absorbers and preparation method thereof | |
CN107746478A (en) | A kind of Rubber shock-absorbing pad and its preparation technology | |
CN109265769A (en) | A kind of rubber absorbers and preparation method thereof that ageing-resistant performance is high | |
CN108638534A (en) | A kind of manufacturing method of carbon fibre composite bonnet | |
CN106146942A (en) | Rubber-plastic foamed composite board of metal and preparation method thereof | |
CN105585848B (en) | Solid propellant rocket liner molding silicone rubber air capsule material and preparation method thereof | |
CN109021330B (en) | Rubber material for rail transit and preparation method and application thereof | |
CN113006309A (en) | High-fatigue three-dimensional vibration and vibration double-control device | |
CN110078980A (en) | A kind of high-performance damping bridge rubber bearing | |
CN110885479A (en) | Special rubber for building shock insulation support and preparation method thereof | |
CN114276515B (en) | Polyurethane microporous elastic backing plate with ultrahigh strength and low dynamic and static stiffness ratio and preparation method thereof | |
CN216109113U (en) | High-fatigue three-dimensional vibration and vibration double-control device | |
CN106349522A (en) | Low-pressure deformation rubber composition as well as preparation method, application and application product thereof | |
CN113980425A (en) | Foam filler and preparation method thereof | |
CN103467784B (en) | Method for manufacturing vibration isolator | |
CN102153788A (en) | Injection molding process of road roller damping block | |
CN110982276A (en) | Silicone rubber vibration damping pad with low dynamic-static stiffness ratio and preparation method thereof | |
CN112500613A (en) | High-wear-resistance prefabricated rubber track material and preparation method thereof | |
CN105838085A (en) | A durable weather-proof composite vibration damping material and a preparing method thereof | |
CN108623865A (en) | Mixed passenger and freight railway rubber mat plate | |
CN116675909B (en) | Preparation method of solid tire | |
CN114316205B (en) | High-strength low-dynamic-static-stiffness-ratio polyurethane microporous elastic base plate and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |
|
RJ01 | Rejection of invention patent application after publication |